Hi, I flashed the middleton bios onto my X61t and the flasher said everything went fine, however I cannot tell if it was successful as the bios looks the same. Can someone tell me what's the best way to tell if the flash was successful?

I have no unmodified T61's. But if i need to check BIOS for modification (without hardware tests) i use SLIC toolkit utility. Unmodded bios have slic v 2.0 (or no slick at all).
Modded BIOS have slic v 2.1. Or more presisely LENOVOTP-7U.